<template>
  <div id="pictureDetailPage">
    <a-row :gutter="[16, 16]">
      <!-- 图片预览 -->
      <a-col :md="16" :sm="24" :xl="18">
        <a-card class="card" title="图片预览">
          <a-image :src="picture.url" style="max-height: 600px; object-fit: contain" />
        </a-card>
      </a-col>
      <!-- 图片信息区域 -->
      <a-col :md="8" :sm="24" :xl="6">
        <a-card class="card-info" title="图片信息">
          <a-descriptions :column="1">
            <a-descriptions-item label="作者">
              <a-space>
                <a-avatar :size="24" :src="picture.user?.userAvatar" />
                <div>{{ picture.user?.userName }}</div>
              </a-space>
            </a-descriptions-item>
            <a-descriptions-item label="名称">
              {{ picture.name ?? '未命名' }}
            </a-descriptions-item>
            <a-descriptions-item label="简介">
              {{ picture.introduction ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="类型">
              <a-tag style="color: green">
                {{ picture.category ?? '默认' }}
              </a-tag>
            </a-descriptions-item>
            <a-descriptions-item label="标签">
              <a-tag v-for="tag in picture.tags" :key="tag" style="color: dodgerblue">
                {{ tag }}
              </a-tag>
            </a-descriptions-item>
            <a-descriptions-item label="格式">
              {{ picture.picFormat ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="宽度">
              {{ picture.picWidth ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="高度">
              {{ picture.picHeight ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="宽高比">
              {{ picture.picScale ?? '-' }}
            </a-descriptions-item>
            <a-descriptions-item label="大小">
              {{ formatSize(picture.picSize) }}
            </a-descriptions-item>
            <a-descriptions-item label="主色调">
              <a-space>
                {{ picture.picColor ?? '-' }}
                <div
                  v-if="picture.picColor"
                  :style="{
        backgroundColor: toHexColor(picture.picColor),
        width: '16px',
        height: '16px',
      }"
                />
              </a-space>
            </a-descriptions-item>


          </a-descriptions>
          <!-- 图片操作 -->
          <a-space wrap>
            <a-button v-if="loginUserStore.loginUser.userRole==='admin'||loginUserStore.loginUser.userRole==='vip'"
                      type="primary"
                      @click="doDownload">
              免费下载
              <template #icon>
                <DownloadOutlined />
              </template>
            </a-button>
            <a-button v-if="canEdit" :icon="h(EditOutlined)" type="default" @click="doEdit">
              编辑
            </a-button>
            <a-button v-if="canDelete" :icon="h(DeleteOutlined)" danger @click="doDelete">
              删除
            </a-button>
          </a-space>
        </a-card>
      </a-col>
    </a-row>
  </div>
</template>

<script lang="ts" setup>
import { computed, h, onMounted, ref } from 'vue'
import { deletePictureUsingPost, getPictureVoByIdUsingGet } from '@/api/pictureController.ts'
import { message } from 'ant-design-vue'
import { DeleteOutlined, DownloadOutlined, EditOutlined } from '@ant-design/icons-vue'
import { useLoginUserStore } from '@/stores/useLoginUserStore.ts'
import { useRouter } from 'vue-router'
import { downloadImage, formatSize, toHexColor } from '@/utils'
import { SPACE_PERMISSION_ENUM } from '@/constants/SPACE_TYPE_ENUM.ts'

interface Props {
  id: string | number
}

const props = defineProps<Props>()
const picture = ref<API.PictureVO>({})

const loginUserStore = useLoginUserStore()

/*// 是否具有编辑权限
const canEdit = computed(() => {
  const loginUser = loginUserStore.loginUser
  // 未登录不可编辑
  if (!loginUser.id) {
    return false
  }
  // 仅本人或管理员可编辑
  const user = picture.value.user || {}
  return loginUser.id === user.id || loginUser.userRole === 'admin'
})*/

// 获取图片详情
const fetchPictureDetail = async () => {
  try {
    const res = await getPictureVoByIdUsingGet({
      id: props.id
    })
    if (res.data.code === 0 && res.data.data) {
      picture.value = res.data.data
    } else {
      message.error('获取图片详情失败，' + res.data.message)
    }
  } catch (e: any) {
    message.error('获取图片详情失败：' + e.message)
  }
}

onMounted(() => {
  fetchPictureDetail()
})

const router = useRouter()

// 编辑
const doEdit = () => {
  router.push('/add_picture?id=' + picture.value.id)
}

// 删除数据
const doDelete = async () => {
  const id = picture.value.id
  if (!id) {
    return
  }
  const res = await deletePictureUsingPost({ id })
  if (res.data.code === 0) {
    message.success('删除成功')
    router.push({
      path: '/'
    })
  } else {
    message.error('删除失败')
  }
}

// 下载图片
const doDownload = () => {
  downloadImage(picture.value.url)
  //下载JPG高清图
  // downloadImage(picture.value.jpgUrl)
}

// 通用权限检查函数
function createPermissionChecker(permission: string) {
  return computed(() => {
    return (picture.value.permissionList ?? []).includes(permission)
  })
}

// 定义权限检查
const canEdit = createPermissionChecker(SPACE_PERMISSION_ENUM.PICTURE_EDIT)
const canDelete = createPermissionChecker(SPACE_PERMISSION_ENUM.PICTURE_DELETE)

</script>

<style scoped>
#pictureDetailPage {
  margin-bottom: 16px;
}

.card {
  text-align: center;

}

.card-info {
  text-align: center;
  border-color: blueviolet;
}
</style>

